Acetylene-gas-generating lamp



(No Model.) I 2 Sheets-Sheet 1. lW. H. DENNIS.

AGETYLENB GAS GENBRATING LAMP. Y No. 581,020. Patented Apr. 20, 1897.`

lll/ll m2555555 I UVE/212] 2 Sheets- Sheet 2.

i (No Model.) v

W. H. DENNIS. AGBTYLENB GAS GBNBRATING LAMP.

No. 581,020. Patented Apr. 2o, 1897.

LEVEN/727 VI/VzYZzmzz/ H Uzmfs .UNITE STATES VILLIAM H. DENNIS, OFMINNEAPOLIS, MINNESOTA.

ACETYLEN EGAS=G EN ERATING LAMP.

SPECIFICATION forming part of Letters Patent No. 581,020, dated April20, 1897.

Application tiled December 15,1896. Serial Nol 615,830. (No model.)

To aZZ whom it may concern.-

Beit known that I, WILLIAM II. DENNIS, of the city of Minneapolis,county of Henne pin, State of Minnesota, have invented certain new anduseful Improvements in Acetylene-Gas Lamps, of which the following` is aspecification. A

My invention relates to acetylene-gas lam ps; and the object of thisinvention is to modify and improve the acetylene-gas lamp or generatorshown and described in my application, Serial No. 610,280, iiled October2S, 1896.

A further and particular object of the invention is to provide a neatand symmetrical lamp which will be capable of holding a large body ofgas and wherein the pressure is at all times equalized; and, further, alamp wherein a larger supply or head of water may be maintained; and,further, to .render the two parts or cylinders of the lamp or generatorpractically the same in appearance; and, further, a detail object is toconstruct the lamp in a cheaper and more durable manner.

With these ends in view my invention consists generally in thecombination of a suitable support with two cylinders or chambers, onedevoted to the gas-generator and the other to the watersupply andgas-purifier, though the latter may, if desired, be omitted.

The invention consists, further, in particular means of joining the twocylinders and forming the ducts connecting the same; and, further, in amovable gas-holder used in conneotion with the generator.

The invention consists, further, in regulat- .ing means arranged inconnection with the movable gas-holder; and, further, in particularconstructions and combinations, all as hereinafter described, andparticularly pointed out in the claims.

The invention will be more readily understood by reference to theaccompanying drawings, forming part of this specification, in whichFigure 1 is a verticalsection of an acetylene-gas lamp or generatorembodying my invention. Fig. 2 isa sectional view thereof on the line.fr 0o of Fig. 1 and showing particularly the means for regulating theow of water to the generator.

As shown in the accompanying drawings, the lamp is in gen eralappearance practically the same as that described in my above-mentionedapplication and may, like that, be supported upon a standard. I havehere shown the lamp provided with a bracket by which it may be fixedupon a side wall.

2 and 3 are the main cylinders or chambers of the lamp. The former isprovided with an interior wall or chamber Ll, the two being connected bythe annular bottom 5. The edge of the cylinder 2 projects below thisbottom 5 to provide space for the packing-ring 6 upon the cartridge 7.This cartridge is of a size to iit into the cylinder and is held thereinby friction.. The bottom 8 of the cartridge is preferably formed withthe hopper or cavity 9 to receive the refuse. IO indicates a screenbottom in the cartridge. The cartridge may at any time be drainedthrough the valve 1I.

In the upper part of the cylinder 4 is a perforated diaphragm or coneI2. As indicated, the water rises nearly to the top of the opentoppedcylinder 4E and enters the cylinder and the cartridge through the smallholes or perforations 13 provided in the upper part of said cylinder t.From thence it flows downward and distributes itself over and throughthe diaphragm or cone 12, so that it is quite evenly distributed overthe mass of calcium carbid in the cartridge '7. `The top of the cylinder2 is open to receive the movable gasholder I5, which is itself open atthe bottom and adapted to sink into the annular waterleg formed betweenthe cylinders 2 and 4. The gas-holder has a solid heavy top 1G,which hasa weight to counterbalance the pressure of the gas in the upper part ofthe same and by which pressure of the gas is equalized regardless of itsvolume. The other cylinder 3 is divided into two parts by apartition I7,and about two-thirds of said cylinder is employed as a water-chamber,which may be filled through the opening I8 in the top. The lower part ofthe cylinder is employed as a gas-chamber, and in this the gas-purifyingagent is placed, if used. In the upper part or watertank portion of thecylinder 3 is a gascoil I9, the gas in which is cooled by thesurrounding water.

The upper end of the gas-coil I9 is connected with the gas-outlet pipe20 in the gas-chamber of the generator; The lower end of the coil isfastened in the sleeve or collar 2l in IOO the partition 17. A pipeconducts the gas from the chamber 2S beneath the partition I7 to thegaspipe 24, with which the burners are connected. The lower end of thecylinder is closed by the bottom 25, provided with the dripeock 2G, andwhich carries the cylinder or basket 27 to contain the purifyingsubstance or agent.

2S is a screen or perforated bottom for the basket 27, and 2t) is acentral tube preferably fastened and supported by the spider-arms 30.rlhe upper end of this tube 29 is threaded to enter the threaded lowerend of the sleeve or coupling l in the partition I7, and when the bottomis turned itwill be drawn up thereby. so that the packing-ring 3l willbe compressed to make a gas-tight joint between the lower edge of thecylinder and the bottom 25. The bottom 25 is preferably formed with aresidue-pocket 32 similar to that in the bottom of the other cylinder.The gas-pipe 2O leads from the space above the water-distributing coneor diaphragm and downwardly between the cylinder i and the gas-holder.

Si represents a casting upon which the two cylinders are secured,andthis casting is cored to form the duet 35, the duct 3G, and the duct 37.The duct connects the lower part of the water tank or chamber in thecylinder 3 with the water-leg around the cartridge in the generator.

In the water-duct 35 I provide a small valve 3S of any suitable form andhere considerably exaggerated in size. rlhe water maybe shutoft' orregulated by means of this valve, and to automatically control the ilowof water I provide a lever 3) on the valve and connect the same with themovable gas-holder which forms the top of the generator. In order topermit a considerable latitude of movement, I prefer to connect thelever and the gas-holder by a light spring it), counterbalanced on theopposite side by another spring il. These springs are preferablyinelosed in telescoping tubes, whereby the springs are concealed, andthe upper ends of the springs are connected with the gas-holder by looselinks or rings yl-Bgvhich may be easily detached from the lugs ttt onthe holder. The lower end of the spring` t0 is preferably connected tothe lever 39 by a hook Al5 or other means, whereby the lever may bereleased to permit the closing of the valve byhand. The lever 3f) ispreferably provided with weights 4G to render its return movementautomatic. The duct 3G serves to connect the lower end of the pipe 20with the gas-coil, a part t7 of which extends upwardly to the top of thecoil, from whence the gas flows downwardly and iinally delivers into thetube 29 and the space beneath the purifier-basket. From thence the gasrises through the purifying substance and passes off tothe burnersthrough the pipe 29, duct 37, and gas-pipe 2t.

Having thus described my invention, I claim as new and desire to secureby Letters Patent l. In an acetylene-gas lamp, the combination, with asuitable cylinder provided with an annular water-leg, of a movablegas-holder forming the top of said cylinder and adapted to sink intosaid water-leg, a removable bottom for said cylinder, a cylinder orcartridge carried thereby and adapted to be inserted into the bottom ofsaid cylinder, suitable means forpacking the joint between the same,means for distributing water over the material in said cartridge, and agas-outlet pipe leading from the top of said cylinder downward to apoint beneath the lower end of said gas-holder, substantially asdescribed.

2. In an acetylene-gas lamp, the combination, with a suitable cylinderprovided with an annular water-leg, of a movable gas-holder forming thetop of said cylinder and adapted to sink into said. water-leg, aremovable bottom for said cylinder, a cylinder or cartridge carriedthereby and adapted to be inserted into the bottom of said cylinder,suitable `leans for paekingthc joint between thesame, means fordistributing water over the material in said cartridge, a gas-outletpipe leading from the top of said cylinder downward to a point beneaththe lower end of said gasholder, and said gas-holder having a weightedtop whereby the gas within the same is compressed and the pressurecqualized, substantially as described.

3. The combination in an acetylene -gas lamp, of the two adjacentvertical cylinders or chambers of substantially the same height, onedevoted to the purposes of a gas-generator and adapted to containgas-producing material in its lower part, and the other havilig in itsupper part a tank or chamber for water, and in its lower part agas-chamber,with a valved water-duct connecting the waterchamber withthe gas-generator cylinder, a gas-duct extending between them, agas-coil or its equivalent arranged in said water-cham- IOO IIO

ber, connected with said gas-duct and. dis- A charging into thegas-chamber beneath the water-chamber, and a gas-exit from thegaschamber, substantially as described.

at. In an acetylene-gas lamp, the combination, with suitable lncans tocontain gas-producing material, with means for supplying water thereto,a cylinder provided with a water-chamber and with a gas-chamber, oneabove the other, said cylinder having a removable bottom, and a centraltube whereby the same is fastened, and a gas-coil provided in one ofsaid chambers or compartments and communicating with said central tube,substantially as described.

5. In an acetylene-gas lamp, the combination, with a suitable generatorportion, of the cylinder 3, provided in its upper part with awater-chamber and at its lower part with a gas-chamber 23, a gas-coilarranged in the upper part of said cylinder, of a removable bottom ofthe cylinder, the central tube pro- 'ided thereon, means for securingsaid central tube in the partition between thc chambers or compartmentsof said cylinder, and a suitable packing arranged between the cylinderand said bottom, substantially as described.

6. The combination, with the cylinder 3 having the partit-ion 17, of thebottom 25, the central tube provided thereon, and a sleeve in saidpartition to receive the end of said tube, and a suitable packingarranged between the cylinder and said bottom 25, substantially asdescribed.

7. The combination, witha suitable generator, of the water-cylinder 3, awater-duct, and a gas-duct connecting said generator and saidwater-cylinder, the partition 17 in said cylinder 3, the gas-coilprovided in the upper part of the cylinder 3, an opening in the npperpart of said cylinder, apuriier cartridge or basket provided in thelower part of said cylinder 3, means for conducting the gas to a pointbeneath said basket, and a gas-outlet pipe leading from the lower partoi' the cylinder 3, substantially as described.

S. The combination, of the opposite and independent cylinders, onedevoted to the purposes of a generator and the other adapted to containwater, the casting or block whereon said cylinders are secured, and theWater and gas ducts provided in said casting or block, substantially asdescribed.

9. The combination, in an acetylene-gas lamp, of a suitable cylinder orchamber, a movable gas-holder forming the top thereof, means within saidcylinder to contain gasproducing material, means for supplying waterthereto, a water-valve, a lever connected therewith, and a suitablespring or yielding connection between said lever and the movablegas-holder, substantially as described.

10. The combination, with the generatorcylinder, of the movablegas-holder or top, the balancing-springs attached thereto, the waterpipe or duct connected with said generator, the valve therein, avalve-lever, and means connecting the same with one of said springs, asand for the purpose specified.

11. The combination, with the generatorcylinder, of the movablegas-holder or top, the balancing-springs attached thereto, the waterpipe or duct connected with said generator, the valve therein, avalve-lever, and

detachable means connecting the same with one of said springs, as andfor the purpose specified.

12. The combination, in a gas-generator, of a suitable tank or cylinder,with means to contain a gas-producing material and to supply waterthereto, a movable gas-holder or top for said cylinder or tank, thewater pipe or duct connected with said cylinder or tank, the valvetherein, a valve-lever, the springs 40 and 41, said lever connected withone of the same, and detachable means connecting said springs with saidmovable gas-holder, substantially as described.

In testimony whereof I have hereunto set my hand this 25th day ofNovember, A. D. 1896.

WILLIAM II. DENNIS.

In presence oi'- C. G. HAWLEY, W. E. GooLnY.

